fatal after a new source-builder update

Ярослав Лещинский midniwalker at gmail.com
Wed May 15 14:06:16 UTC 2019


if change to CPU_CFLAGS =  -mthumb -mcpu=cortex-m4 -mfpu=fpv4-sp-d16
-mfloat-abi=softfp, application not responded at all.



On Wed, 15 May 2019 at 16:45, Ярослав Лещинский <midniwalker at gmail.com>
wrote:

> yes, I know, I just checked that behavior is the same as before.
>
> With these flags -mthumb -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard
>
> I got error from linker:
>
> /home/midnight/rtems/toolchain/5/lib/gcc/arm-rtems5/7.4.1/../../../../arm-rtems5/bin/ld:
> error: o-optimize/test.exe uses VFP register arguments, /
> home/midnight/workspace/rtems/build/arm-rtems5/stm32l4/lib/librtemsbsp.a(bspfatal-default.o)
> does not
> /home/midnight/rtems/toolchain/5/lib/gcc/arm-rtems5/7.4.1/../../../../arm-rtems5/bin/ld:
> failed to merge target specific data of file /home/midnig
>
> ht/workspace/rtems/build/arm-rtems5/stm32l4/lib/librtemsbsp.a(bspfatal-default.o)
>
> Currently I'm trying to figure out what is a problem.
>
> On Wed, 15 May 2019 at 16:33, Sebastian Huber <
> sebastian.huber at embedded-brains.de> wrote:
>
>> On 15/05/2019 15:31, Ярослав Лещинский wrote:
>> > problem solved after edition of CPU_FLAGS as mentioned in stm32f4.cfg:
>> >
>> > CPU_FLAGS = -mthumb -mcpu=cortex-m4
>>
>> If you use these flags, then you don't use the floating point
>> instructions.
>>
>> --
>> Sebastian Huber, embedded brains GmbH
>>
>> Address : Dornierstr. 4, D-82178 Puchheim, Germany
>> Phone   : +49 89 189 47 41-16
>> Fax     : +49 89 189 47 41-09
>> E-Mail  : sebastian.huber at embedded-brains.de
>> PGP     : Public key available on request.
>>
>> Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
>>
>>
>
> --
> --
> Kind regards,
> *Yaroslav Leshchinsky*
>


-- 
--
Kind regards,
*Yaroslav Leshchinsky*
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.rtems.org/pipermail/devel/attachments/20190515/cf579990/attachment.html>


More information about the devel mailing list